Seiko Cal. 5684 - 381

The Seiko 5684-381 represents an important milestone in Seiko's 1966 lineup. Powered by the 5684 caliber with 33j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-39662373fc97]

Also known as: Tuna, Flighty

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

45mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1966

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